武都区油橄榄有害陆生贝类

Investigation on Harmful Terrestrial Mollusk in Olea europaea in Longnan,Gansu Province

陆生贝类多为农林有害生物,造成作物减产甚至绝收。采用样地法调查陇南市武都区油橄榄园陆生贝类,结果表明武都区油橄榄园分布陆生贝类1目2科6属8种,优势种群为格拟烟螺;管理粗放且套种石榴的油橄榄园陆生贝类个体数量较多,周边有农作物时也较多;10月份为个体数量高峰。其中,格拟烟螺、囊形奇异螺为甘肃新纪录种。

Terrestrial mollusks are pests in agriculture,resulting in crop production.The species of terrestrial mollusk on Olea europaea was investigated in Longnan.8 species were identified based on morphological character,the 8 species belonging to 2 families and 6 genera.Clausiliopsis clathratus isdominant population.There wasmore terrestrial mollusksin olive groves with extensive management and interplanting pomegranates,there are also more crops around,and the number of individuals peaked in October.Among these species,the C.clathratus and Mirus saccatus were new records for Gansu.